Back to results
US 12,592,446 B2Granted
Battery pack including heat insulating sheet and friction sheet
AssigneeSamsung SDI Co., Ltd.
InventorBaeckgi Jung
Life of this patent
Estimating the term…
Abstract
A battery pack includes a plurality of battery cells arranged in a longitudinal direction, a heat insulating sheet between two adjacent battery cells of the plurality of battery cells, a first friction sheet located between the heat insulating sheet and a first battery cell of the two adjacent battery cells and including non-adhesive surfaces in direct contact with the heat insulating sheet and the first battery cell, and a restrainer configured to provide a compressive force in the longitudinal direction from opposite ends of the plurality of battery cells.
Claims20
A battery pack comprising:
- a plurality of battery cells arranged in a longitudinal direction;
- a heat insulating sheet between two adjacent battery cells of the plurality of battery cells;
- a first friction sheet located between the heat insulating sheet and a first battery cell of the two adjacent battery cells and comprising non-adhesive surfaces in direct contact with the heat insulating sheet and the first battery cell so as to form a frictional bond with the heat insulating sheet and the first battery cell, respectively;
- a second friction sheet located between the heat insulating sheet and a second battery cell of the two adjacent battery cells so as to form a frictional bond with the heat insulating sheet and an adhesive bond with the second battery cell;
- and
- a restrainer configured to provide a compressive force in the longitudinal direction from opposite ends of the plurality of battery cells, wherein the compressive force affects each of a frictional bonding strength between the first friction sheet and the first battery cell and a frictional bonding strength between the first friction sheet and the heat insulating sheet, the frictional bonding strength between the first friction sheet and the first battery cell being proportional to the compressive force so as to maintain the first friction sheet and the first battery cell against relative movement in a transverse direction intersecting the longitudinal direction, and the frictional bonding strength between the first friction sheet and the heat insulating sheet being proportional to the compressive force so as to maintain the first friction sheet and the heat insulating sheet against relative movement in the transverse direction intersecting the longitudinal direction,
- wherein a friction coefficient between the first friction sheet and the heat insulating sheet is in a range of 0.2 to 0.8, and
- wherein a friction force between the first friction sheet and the first battery cell is in a range of 400 N to 4000 N.
5 more elements
Dependencies are inferred from the claim text.